Yeah, though I(and I'm gonna sound like an arse her) I hate when new players take all the advanced roles. If your new play Rifleman, not elite, just rifleman. You'll get used to how to play, all the quirks of the game, and it will let the experienced players do the specialty roles well. Once you've played a few matches then try one of the other roles.
If you want to try the TL or SL roles, play the tutorials, and then ask to try them, but be honest that you haven't played the role in multi before. A bad TL will not only kill the chance of winning for a team, but it can be detrimental to enjoying a match if the TL doesn't know how to do his job. I'm more forgiving if I know your new to the role, so be upfront about being new. Same to SLs.
Oh. and it's annoying when people TK you for running because they don't know the difference between a Russian sprint and a German one. Russians hold their weapon with both hands, Germans with one hand. Oh, and the Russians wear brown uniforms, and Germans a greenish grey.
Sorry for the rant, I should probably make a new thread later.